EP2038180B1 - A method for attaching a spout to a flexible film pouch - Google Patents
A method for attaching a spout to a flexible film pouch Download PDFInfo
- Publication number
- EP2038180B1 EP2038180B1 EP20070795891 EP07795891A EP2038180B1 EP 2038180 B1 EP2038180 B1 EP 2038180B1 EP 20070795891 EP20070795891 EP 20070795891 EP 07795891 A EP07795891 A EP 07795891A EP 2038180 B1 EP2038180 B1 EP 2038180B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- patch
- front wall
- pouch
- spout
- aperture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 18
- 230000013011 mating Effects 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 25
- 239000010409 thin film Substances 0.000 claims description 9
- 239000010408 film Substances 0.000 claims description 7
- 235000013361 beverage Nutrition 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 abstract description 6
- 238000003466 welding Methods 0.000 abstract description 3
- 238000004026 adhesive bonding Methods 0.000 abstract description 2
- 238000003860 storage Methods 0.000 abstract description 2
- 239000004698 Polyethylene Substances 0.000 description 9
- 229920000573 polyethylene Polymers 0.000 description 9
- 238000004806 packaging method and process Methods 0.000 description 5
- 230000036346 tooth eruption Effects 0.000 description 5
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 241001125929 Trisopterus luscus Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000021056 liquid food Nutrition 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 235000011496 sports drink Nutrition 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/5861—Spouts
- B65D75/5872—Non-integral spouts
- B65D75/5877—Non-integral spouts connected to a planar surface of the package wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/008—Standing pouches, i.e. "Standbeutel"
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S383/00—Flexible bags
- Y10S383/906—Dispensing feature
Definitions
- the present invention relates generally to containers referred to as "flexible film pouches,” and more particularly refers to a method for affixing a re-closeable spout to a flexible film pouch in order to allow the spout to be used as a means of accessing the contents of the pouch and then resealed to secure the contents of the pouch.
- Flexible pouches are an attractive alterative to other forms of consumer packaging, including glass or plastic bottles, aluminum cans, and cartons.
- Pouches have distinctive practical and economic advantages in that they lie flat when empty, thereby requiring less storage space and reducing handling and shipping costs as well as lower costs of bulk waste.
- Flexible pouches are typically recyclable without processing and can be produced at costs comparable to rigid containers.
- the appeal of flexible pouches to consumers over rigid containers includes convenience: they are lightweight and easy to fit into small spaces; have a distinctive tactile appeal; and are more friendly to the environment and thus convey a lifestyle image more consistent with that of many consumers.
- Flexible film pouches also tend to have greater surface areas for displaying graphics and this creates more space for merchandising which further enhances the product, benefiting both suppliers and consumers alike.
- Flexible pouches currently used in the packaging industry are comprised of multilayers of coextruded materials, conventionally between two and ten layers, and more typically from four to six layers.
- the layers can be made of polyethylene (PE), ethylene vinyl alcohol copolymer (EVOH), metal foil, or polyester (PET), along with a solvent or solvent based adhesive to bind the adjoining layers.
- the contents of the pouch is filled through the spout opening after it has been attached to the pouch.
- This methodology is relatively slow, resulting in higher costs of manufacture and packaging. Consequently, spouted pouches can cost more than competing rigid containers requiring them to be priced comparatively higher, and many consumers are unwilling to pay this added cost despite the distinctive design and appeal of the spouted pouch.
- spout Another material which may be used for a spout is polypropylene (PP) but the cost involved in affixing this spout to the body of the pouch is also too high to gain strong consumer interest.
- PP polypropylene
- the present art for spouts follows a common design, limiting brands owners from achieving differentiation of their products, desired in the overall appearance of their packaging.
- the application of spouts to pouches for other uses aside from beverages, such as liquid foods as well as household products, cosmetics, lotions, and the like are held back by the limited range of spout sizes and lack of suitable and economical means of manufacture. Therefore while demand for pouches with spouts has been growing, spouted pouches have gained limited popularity as a packaging form.
- a thin film pouch comprises a laminate pouch having a front wall and a back wall defining a material volume there between, that front wall having an inner surface of a first material and an outer surface of a second material, and an aperture providing access to said interior volume.
- a patch has a surface formed of a first material.
- WO 96/1185 A is a pouring spout device without a flange directly glued on the front wall of a container of laminated packaging material constituted of paperboard aluminium and internal coated with a thermoplastic film. Since EP 0328652 A1 uses a container of the same material the closure means is welded with its flange to the inner surface of the front wall. Both citation do not disclose the us of a patch.
- JP-2000 016453 A discloses a pouch comprising a closure means wherein the flange of the closure means includes a substantially flat annular base comprising further an integrally formed, downwardly projecting rind portion is lying totally on the outer surface of the front wall without contact with a patch welded to the inner surface of a front wall of said pouch.
- the present invention seeks to solve these shortcomings with new opportunities for different spout configurations by employing a different technology to seal the spout to the pouch and apply the spout to the outside of the pouch.
- These innovations will result in a reliable and low cost method of applying an attractive and practical re-closeable spout to flexible pouches and create new opportunities for spouted pouches to be utilized for a broad range of products, including health and beauty, household, medical, automotive and industrial products as well as low acid beverages, in a range of pouch and spout sizes.
- the shortcomings of the prior art are overcome in the present invention through a combination of the method by which the spout is sealed to the pouch.
- the sealing method requires a flexible pouch to be manufactured with a patch (or strip) of thin film affixed to the inner surface of the pouch, to which a spout can be reliably attached.
- the spout preferably composed of high density PE, is bonded to the patch or strip rather than the pouch body.
- the pouch may include an external layer of PE and a patch or strip would preferably include a surface of PE that could then be welded to the inner surface of the pouch.
- the welding is achieved though ultrasonic bonding, although other types of bonding may be used including bonding utilizing a process of applying heat and adhesives.
- the patch or strip also includes an aperture that can be used to fill the pouch as well as provide ready access to the contents when the re-closable spout is opened.
- the patch or strip provides a barrier that seals the pouch until ruptured by a cutting mechanism located at the spout.
- the front wall 12 and rear wall 14 are preferably made of a multilayer laminate of co-extruded material having between two and ten layers, and more typically four to six layers.
- the layers can be made of polyethylene (PE), ethylene vinyl alcohol copolymer (EVOH), metal foil, polyester (PET), and solvent or solvent based adhesive to bind the adjoining layers.
- PE polyethylene
- EVOH ethylene vinyl alcohol copolymer
- PET polyester
- solvent or solvent based adhesive to bind the adjoining layers.
- an aperture 16 is formed in the front wall 12.
- the aperture 16 will typically be formed in the front wall during formation of the pouch, although the aperture may be cut after the pouch is assembled.
- the mating surface 20 of the patch 18 that is intended to bond with the inner surface 22 of the front wall 12 is constructed of a like material with the inner surface 22, or at least of a material selected to promote bonding between the two surfaces.
- the preferred material is PE, although other materials are possible.
- the patch 18 is affixed to the inner surface 22 of the pouch 10 such that the patch 18 is behind the aperture 16 and may extend beyond the area defined by the aperture and the patch 18 may be completely hidden by the front wall 12.
- the patch 18 may include a smaller aperture 21, through which the contents of the pouch 10 are intended to flow.
- a closure means of the same material as the patch can then be affixed thereto.
- a spout unit 24 can be directly affixed to the patch 18 to provide a re-sealable closure means that also serves as a pouring spout.
- the spout unit 24 may be comprised of a threaded cap 26 that cooperates with a threaded spout 29 that has at its base, a flange 28, although a snap-on cap or pull-spout such as those used on sports drink bottles may also be used.
- the flange 28 includes a substantially flat annular base 30 with an integrally formed, downwardly projecting ring portion 32 that forms the contact point for the flange 28 to bond with the patch as shown in Figure 3 .
- the threaded cap 26 can be opened in order to evacuate the contents of the pouch and closed on the threaded spout to seal the spout unit and therefore secure the contents within the pouch.
- Figure 4 illustrates a second or alternative embodiment of the present invention where the patch 38 may comprise a rectangular strip of material that extends from one edge 40 of the pouch to the opposite edge 42, and may be attached at the welds of the front wall 12 and rear wall 14. Unlike the previous embodiment, the patch 38 does not include a hole but rather is continuous across the aperture 16.
- the closure means such as spout unit 24 is bonded to the patch 38 as discussed above, the integrity of the pouch is not breached and the pouch remains intact.
- the spout unit 24 is equipped with cutting teeth 44 (see Figure 4b ) on the lower portion of the spout cap 26 that project radially inwardly and/or downwardly below the surface of the annular base 30.
- the spout 24 may be equipped with a spacer ring (not shown) that is discarded when the pouch is ready to open so that the cap can be pressed to bear against the patch 38 when the spacer ring is removed.
- a spacer ring not shown
- the cutting teeth 44 tear the patch surface to open the pouch and allow access to its contents.
- the tear in the patch 38 can be sealed by closing the spout cap 26 against the flange 28 in the manner described above, thus allowing the pouch 10 to be resealed over and over.
- Figures 5 and 6 illustrate the connection of the second preferred embodiment, where the teeth 44 on the cutting ring are shown rupturing the patch 38 to create a patch flap 50 directed inwardly toward the pouch's interior.
- the patch 18 of the first embodiment or patch 38 of the second embodiment can be used with or without cutting teeth 44, and the cutting teeth 44 can be used with either patch configuration.
- the mode of cutting or tearing the patch is not determinant of the second embodiment of the present invention and the description of cutting teeth are meant to be illustrative only. Perforations, pull-tabs, and other means of creating an opening in the pouch are considered within the scope of the invention.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
- Packages (AREA)
- Making Paper Articles (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Abstract
Description
- The present invention relates generally to containers referred to as "flexible film pouches," and more particularly refers to a method for affixing a re-closeable spout to a flexible film pouch in order to allow the spout to be used as a means of accessing the contents of the pouch and then resealed to secure the contents of the pouch.
- Flexible pouches are an attractive alterative to other forms of consumer packaging, including glass or plastic bottles, aluminum cans, and cartons. Pouches have distinctive practical and economic advantages in that they lie flat when empty, thereby requiring less storage space and reducing handling and shipping costs as well as lower costs of bulk waste. Flexible pouches are typically recyclable without processing and can be produced at costs comparable to rigid containers. The appeal of flexible pouches to consumers over rigid containers includes convenience: they are lightweight and easy to fit into small spaces; have a distinctive tactile appeal; and are more friendly to the environment and thus convey a lifestyle image more consistent with that of many consumers. Flexible film pouches also tend to have greater surface areas for displaying graphics and this creates more space for merchandising which further enhances the product, benefiting both suppliers and consumers alike.
- Flexible pouches currently used in the packaging industry are comprised of multilayers of coextruded materials, conventionally between two and ten layers, and more typically from four to six layers. The layers can be made of polyethylene (PE), ethylene vinyl alcohol copolymer (EVOH), metal foil, or polyester (PET), along with a solvent or solvent based adhesive to bind the adjoining layers.
- Present art involves pouches that have been designed with a spout welded to the top opening of the pouch body during the process of sealing the pouch closed. Most spouts are made of a high density PE and this material does not readily adhere to other materials of non-similar composition. This makes affixing the spout to the pouch problematic. This is further complicated by difficulties with achieving a leak-proof seal of the spout to the pouch.
- In addition to problems with the quality of seal, in some instances the contents of the pouch is filled through the spout opening after it has been attached to the pouch. This methodology is relatively slow, resulting in higher costs of manufacture and packaging. Consequently, spouted pouches can cost more than competing rigid containers requiring them to be priced comparatively higher, and many consumers are unwilling to pay this added cost despite the distinctive design and appeal of the spouted pouch.
- Another material which may be used for a spout is polypropylene (PP) but the cost involved in affixing this spout to the body of the pouch is also too high to gain strong consumer interest. As well, the present art for spouts follows a common design, limiting brands owners from achieving differentiation of their products, desired in the overall appearance of their packaging. Moreover, the application of spouts to pouches for other uses aside from beverages, such as liquid foods as well as household products, cosmetics, lotions, and the like are held back by the limited range of spout sizes and lack of suitable and economical means of manufacture. Therefore while demand for pouches with spouts has been growing, spouted pouches have gained limited popularity as a packaging form.
-
US-A 5,851,072 discloses a spout construction for bulk box liquid liner. A thin film pouch comprises a laminate pouch having a front wall and a back wall defining a material volume there between, that front wall having an inner surface of a first material and an outer surface of a second material, and an aperture providing access to said interior volume. A patch has a surface formed of a first material. - In
WO 96/1185 A EP 0328652 A1 uses a container of the same material the closure means is welded with its flange to the inner surface of the front wall. Both citation do not disclose the us of a patch. -
JP-2000 016453 A - The present invention seeks to solve these shortcomings with new opportunities for different spout configurations by employing a different technology to seal the spout to the pouch and apply the spout to the outside of the pouch. These innovations will result in a reliable and low cost method of applying an attractive and practical re-closeable spout to flexible pouches and create new opportunities for spouted pouches to be utilized for a broad range of products, including health and beauty, household, medical, automotive and industrial products as well as low acid beverages, in a range of pouch and spout sizes.
- The shortcomings of the prior art are overcome in the present invention through a combination of the method by which the spout is sealed to the pouch. The sealing method requires a flexible pouch to be manufactured with a patch (or strip) of thin film affixed to the inner surface of the pouch, to which a spout can be reliably attached. The spout, preferably composed of high density PE, is bonded to the patch or strip rather than the pouch body. For example, the pouch may include an external layer of PE and a patch or strip would preferably include a surface of PE that could then be welded to the inner surface of the pouch. In a preferred embodiment, the welding is achieved though ultrasonic bonding, although other types of bonding may be used including bonding utilizing a process of applying heat and adhesives. A section of the pouch is cut away to expose the patch or strip. When the spout flange is sealed to the patch or strip, it is positioned directly over the circular cut away portion of the pouch in order that it can be applied to the exposed patch or strip material. In a first preferred embodiment, the patch or strip also includes an aperture that can be used to fill the pouch as well as provide ready access to the contents when the re-closable spout is opened. When the spout cap is twisted open and removed during its initial use, the contents of the pouch are allowed to flow through the aperture and the spout. In a second preferred embodiment, the patch or strip provides a barrier that seals the pouch until ruptured by a cutting mechanism located at the spout. When the spout cap is twisted to open during its initial use, sharp protruding teeth on a cutting ring are engaged and lower to puncture the patch or strip material, then as the cutting ring turns, the teeth cut through the patch or strip material to create an aperture. The aperture allows the contents of the pouch to flow through the aperture and the pout.
- Other features and advantages of the invention will become apparent from the following detailed description, taken in conjunction with the accompanying drawings which illustrate, by way of example, the features of the invention, wherein:
- Figure la is a front view, partially in shadow, of a first preferred embodiment of a thin film pouch and spout combination constructed of the method of the present invention;
-
Figure 1b is a bottom view of the spout ofFigure 1a ; -
Figure 2 is an enlarged, cross-sectional view of the spout, patch, and pouch combination ofFigure 1 prior to attachment of the spout to the patch; -
Figure 3 is an enlarged, cross-sectional view of the spout, patch, and pouch combination ofFigure 1 after attachment of the spout to the patch; -
Figure 4a is a front view, partially in shadow, of a second preferred embodiment of a thin film pouch and spout combination constructed of the method of the present invention; -
Fig. 4b is a bottom view of the spout ofFigure 4a ; -
Fig. 5 is an enlarged, cross-sectional view of the spout, patch, and pouch combination ofFigure 4 prior to attachment of the spout to the patch; and -
Fig. 6 is an enlarged, cross-sectional view of the spout, patch, and pouch combination ofFigure 5 after attachment of the spout to the patch. -
Figure 1 illustrates a first preferred embodiment of the present invention comprising apouch 10 having afront wall 12 and aback wall 14 preferably sealed at respective edges to form a fluid-tight reservoir. The pouch may include side panels (not shown) to expand the volume and may further include a bottom portion that also increases the volume of the pouch, although the shape of the pouch and number of panels play no role in the specifics of the present invention. - The
front wall 12 andrear wall 14 are preferably made of a multilayer laminate of co-extruded material having between two and ten layers, and more typically four to six layers. The layers can be made of polyethylene (PE), ethylene vinyl alcohol copolymer (EVOH), metal foil, polyester (PET), and solvent or solvent based adhesive to bind the adjoining layers. In order to create an opening in the pouch film whereupon a patch or strip of material will be applied, anaperture 16 is formed in thefront wall 12. Theaperture 16 will typically be formed in the front wall during formation of the pouch, although the aperture may be cut after the pouch is assembled. - Secured to the inside surface of the
front wall 12 is apatch 18 selected to bond with the inner surface of thefront wall 12. The preferred method of bonding the two mating surfaces between the pouch and thepatch 18 is with ultrasonic bonding techniques, although heat and adhesive techniques may also be used. As shown more clearly inFigures 2 and 3 , themating surface 20 of thepatch 18 that is intended to bond with theinner surface 22 of thefront wall 12 is constructed of a like material with theinner surface 22, or at least of a material selected to promote bonding between the two surfaces. The preferred material is PE, although other materials are possible. Using ultrasonic bonding, adhesive bonding, heat welding, or other bonding techniques, thepatch 18 is affixed to theinner surface 22 of thepouch 10 such that thepatch 18 is behind theaperture 16 and may extend beyond the area defined by the aperture and thepatch 18 may be completely hidden by thefront wall 12. Thepatch 18 may include asmaller aperture 21, through which the contents of thepouch 10 are intended to flow. - With the
patch 18 in place bonded to thefront wall 12 of thepouch 10, a closure means of the same material as the patch can then be affixed thereto. For example, aspout unit 24 can be directly affixed to thepatch 18 to provide a re-sealable closure means that also serves as a pouring spout. Thespout unit 24 may be comprised of a threadedcap 26 that cooperates with a threaded spout 29 that has at its base, aflange 28, although a snap-on cap or pull-spout such as those used on sports drink bottles may also be used. Theflange 28 includes a substantially flatannular base 30 with an integrally formed, downwardly projectingring portion 32 that forms the contact point for theflange 28 to bond with the patch as shown inFigure 3 . With theflange 28 bonded to thepatch 18 at thering portion 32, the threadedcap 26 can be opened in order to evacuate the contents of the pouch and closed on the threaded spout to seal the spout unit and therefore secure the contents within the pouch. -
Figure 4 illustrates a second or alternative embodiment of the present invention where thepatch 38 may comprise a rectangular strip of material that extends from oneedge 40 of the pouch to theopposite edge 42, and may be attached at the welds of thefront wall 12 andrear wall 14. Unlike the previous embodiment, thepatch 38 does not include a hole but rather is continuous across theaperture 16. When the closure means such asspout unit 24 is bonded to thepatch 38 as discussed above, the integrity of the pouch is not breached and the pouch remains intact. In this embodiment, thespout unit 24 is equipped with cutting teeth 44 (seeFigure 4b ) on the lower portion of thespout cap 26 that project radially inwardly and/or downwardly below the surface of theannular base 30. Thespout 24 may be equipped with a spacer ring (not shown) that is discarded when the pouch is ready to open so that the cap can be pressed to bear against thepatch 38 when the spacer ring is removed. By twisting thespout cap 26 against thepatch 38, the cuttingteeth 44 tear the patch surface to open the pouch and allow access to its contents. The tear in thepatch 38 can be sealed by closing thespout cap 26 against theflange 28 in the manner described above, thus allowing thepouch 10 to be resealed over and over. -
Figures 5 and 6 illustrate the connection of the second preferred embodiment, where theteeth 44 on the cutting ring are shown rupturing thepatch 38 to create apatch flap 50 directed inwardly toward the pouch's interior. It is to be understood that thepatch 18 of the first embodiment or patch 38 of the second embodiment can be used with or without cuttingteeth 44, and the cuttingteeth 44 can be used with either patch configuration. In addition to other types of closure means discussed above, the mode of cutting or tearing the patch is not determinant of the second embodiment of the present invention and the description of cutting teeth are meant to be illustrative only. Perforations, pull-tabs, and other means of creating an opening in the pouch are considered within the scope of the invention.
Claims (8)
- A re-sealable film pouch comprising:a laminate pouch (10) having a front wall (12) and a back wall (14) defining an interior volume therebetween, said front wall (12) having an inner surface (22) of a first material and an outer surface of a second material, and an aperture (16) providing access to said interior volume;a patch (18; 38) having a bonding surface (20) formed of said first material, said patch (18; 38) bonded to said front wall (12) at said inner surface; andclosure means with a flange (28) having a substantially flat annular base (30) with integrally formed downwardly projecting ring portion (32) and a spout (29) for resealably closing the aperture (16) in said front wall where said closure mans is lying on the outside of the front wall (12), characterized in that said downwardly projecting ring portion (32) forms the contact point for the annular base (30) to bond with the patch (18; 38) through said aperture (16) of the front wall (12).
- The re-sealable thin film pouch of Claim 1 wherein said patch is bonded to said front wall ultrasonically.
- The re-sealable thin film pouch of Claim 1 wherein said patch is circular and is bonded proximal of said aperture.
- The re-sealable thin film pouch Claim 1 wherein said patch is an elongate strip and is bonded to said inner surface of said front wall distal of said aperture.
- A method for applying closure spout to a thin-film pouch to obtain a re-sealable film pouch in accordance with claim 1 comprising the steps of: providing a thin-film beverage pouch (10) having front and back walls (12, 14) defining a. volume therebetween, said front wall including an aperture and inner and outer surfaces;
bonding a mating surface of a patch to the inner surface of the front wall behind said aperture, where the mating surface is selected to bond with the inner surface and the connection of the patch (18, 38) with the front wall provides a fluid-tight seal; providing a closure means with a flange (28) having a substantially flat annular base (30) with integrally formed downwardly projecting ring portion (32) and a spout (29);
lying with the substially flat annular base (30) on said front wall (12); passing with said downwardly projecting ring portion (23) of the closure spout through said aperture (16) such that a patch rupturing projection on said closure spout is brought in proximity with said patch (18, 38); and bonding the ring portion (23) to the patch. - The method of Claim 5 where the bonding of the patch to 1 he front wall is achieved by ultrasonic bonding.
- The method of Claim 5 where the mating surface of the patch and the inner surface of the front wall are of a common material.
- The method of Claim 5 where closure spout and the mating surface of the patch are of a common material.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/471,930 US8075189B2 (en) | 2006-06-21 | 2006-06-21 | Method for attaching a spout to a flexible film pouch |
PCT/US2007/013491 WO2007149231A2 (en) | 2006-06-21 | 2007-06-07 | A method for attaching a spout to a flexible film pouch |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2038180A2 EP2038180A2 (en) | 2009-03-25 |
EP2038180A4 EP2038180A4 (en) | 2010-06-09 |
EP2038180B1 true EP2038180B1 (en) | 2011-12-28 |
Family
ID=38833953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20070795891 Active EP2038180B1 (en) | 2006-06-21 | 2007-06-07 | A method for attaching a spout to a flexible film pouch |
Country Status (13)
Country | Link |
---|---|
US (2) | US8075189B2 (en) |
EP (1) | EP2038180B1 (en) |
JP (1) | JP5114478B2 (en) |
KR (1) | KR101040950B1 (en) |
CN (1) | CN101547838B (en) |
AT (1) | ATE539005T1 (en) |
BR (1) | BRPI0713586A2 (en) |
CA (1) | CA2654934C (en) |
ES (1) | ES2381131T3 (en) |
RU (1) | RU2431588C2 (en) |
TW (1) | TWI400181B (en) |
WO (1) | WO2007149231A2 (en) |
ZA (1) | ZA200810753B (en) |
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US11878903B2 (en) | 2020-06-11 | 2024-01-23 | Illinois Tool Works Inc. | Tap assembly |
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-
2006
- 2006-06-21 US US11/471,930 patent/US8075189B2/en active Active
-
2007
- 2007-05-07 TW TW96116065A patent/TWI400181B/en not_active IP Right Cessation
- 2007-06-07 CN CN2007800229907A patent/CN101547838B/en not_active Expired - Fee Related
- 2007-06-07 KR KR20087030804A patent/KR101040950B1/en not_active IP Right Cessation
- 2007-06-07 WO PCT/US2007/013491 patent/WO2007149231A2/en active Application Filing
- 2007-06-07 JP JP2009516505A patent/JP5114478B2/en not_active Expired - Fee Related
- 2007-06-07 BR BRPI0713586-6A patent/BRPI0713586A2/en not_active IP Right Cessation
- 2007-06-07 EP EP20070795891 patent/EP2038180B1/en active Active
- 2007-06-07 RU RU2009101572A patent/RU2431588C2/en not_active IP Right Cessation
- 2007-06-07 ES ES07795891T patent/ES2381131T3/en active Active
- 2007-06-07 AT AT07795891T patent/ATE539005T1/en active
- 2007-06-07 CA CA2654934A patent/CA2654934C/en not_active Expired - Fee Related
-
2008
- 2008-12-19 ZA ZA200810753A patent/ZA200810753B/en unknown
-
2011
- 2011-12-06 US US13/312,041 patent/US20120083398A1/en not_active Abandoned
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109703036A (en) * | 2018-12-19 | 2019-05-03 | 常州信泰包装有限公司 | A kind of environment-protection internal lining heat-sealing processing technology |
US11390516B2 (en) | 2020-05-08 | 2022-07-19 | Illinois Tool Works Inc. | Tap assembly |
US11878903B2 (en) | 2020-06-11 | 2024-01-23 | Illinois Tool Works Inc. | Tap assembly |
Also Published As
Publication number | Publication date |
---|---|
WO2007149231A3 (en) | 2008-08-07 |
KR101040950B1 (en) | 2011-06-16 |
CN101547838A (en) | 2009-09-30 |
RU2431588C2 (en) | 2011-10-20 |
CN101547838B (en) | 2011-08-10 |
TWI400181B (en) | 2013-07-01 |
EP2038180A4 (en) | 2010-06-09 |
WO2007149231B1 (en) | 2008-10-16 |
CA2654934A1 (en) | 2007-12-27 |
ZA200810753B (en) | 2009-11-25 |
JP2009541160A (en) | 2009-11-26 |
RU2009101572A (en) | 2010-07-27 |
BRPI0713586A2 (en) | 2012-10-23 |
US8075189B2 (en) | 2011-12-13 |
JP5114478B2 (en) | 2013-01-09 |
CA2654934C (en) | 2012-07-10 |
EP2038180A2 (en) | 2009-03-25 |
ATE539005T1 (en) | 2012-01-15 |
US20120083398A1 (en) | 2012-04-05 |
WO2007149231A2 (en) | 2007-12-27 |
ES2381131T3 (en) | 2012-05-23 |
TW200815243A (en) | 2008-04-01 |
KR20090014212A (en) | 2009-02-06 |
US20070297700A1 (en) | 2007-12-27 |
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